產品概述
電橋式介電常數測試儀簡介:
主要采(cai)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)比較儀的(de)(de)原理,具有(you)(you)操(cao)作方(fang)便(bian)可(ke)(ke)靠、測(ce)(ce)(ce)(ce)量(liang)精度(du)高(gao)(gao)(gao)、讀數(shu)(shu)(shu)位數(shu)(shu)(shu)多、線(xian)性(xing)(xing)度(du)好(hao),不受環(huan)境濕度(du)影響,儀器(qi)(qi)(qi)(qi)顯示采(cai)用大(da)(da)(da)(da)屏幕 TFT,可(ke)(ke)顯示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)值 Cx、介(jie)(jie)(jie)損(sun)值tgδ、試驗電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓Upk/√2 、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)(gan)(gan)量(liang)Lx、品質因(yin)數(shu)(shu)(shu)Q、測(ce)(ce)(ce)(ce)試電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)Ix、材(cai)料的(de)(de)介(jie)(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)常數(shu)(shu)(shu)ε、測(ce)(ce)(ce)(ce)試電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源頻(pin)率(lv)(lv)fx、視在功率(lv)(lv)S、有(you)(you)效功率(lv)(lv)P、無功功率(lv)(lv)Q等,它不僅(jin)能(neng)測(ce)(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)量(liang)、介(jie)(jie)(jie)損(sun)量(liang),還(huan)能(neng)測(ce)(ce)(ce)(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)(qi)(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)(gan)(gan)量(liang)和(he)Q值及固體材(cai)料和(he)液(ye)體材(cai)料的(de)(de)介(jie)(jie)(jie)質損(sun)耗和(he)介(jie)(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)常數(shu)(shu)(shu),還(huan)有(you)(you)前(qian)時鐘的(de)(de)顯示,是(shi)目前(qian)國內精度(du)高(gao)(gao)(gao)、穩定性(xing)(xing)好(hao)、操(cao)作方(fang)便(bian)、用途廣(guang)泛(fan)的(de)(de)高(gao)(gao)(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋。它在測(ce)(ce)(ce)(ce)量(liang)上具有(you)(you)很高(gao)(gao)(gao)的(de)(de)比率(lv)(lv)精度(du)和(he)穩定性(xing)(xing),這是(shi)一般西林電(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋 、高(gao)(gao)(gao)壓介(jie)(jie)(jie)損(sun)儀不能(neng)達(da)到的(de)(de)。適宜于在高(gao)(gao)(gao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓下(xia)測(ce)(ce)(ce)(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜、高(gao)(gao)(gao)壓套管、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)(qi)(qi)(qi)、 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)(qi)(qi)、互(hu)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)等高(gao)(gao)(gao)壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力設(she)備的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)量(liang)及損(sun)耗角(jiao)正切(qie)值tgδ,以(yi)及各種固體或(huo)液(ye)體絕緣材(cai)料的(de)(de)介(jie)(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)常數(shu)(shu)(shu)(ε)及介(jie)(jie)(jie)損(sun)值tgδ,也可(ke)(ke)測(ce)(ce)(ce)(ce)量(liang)高(gao)(gao)(gao)壓變壓器(qi)(qi)(qi)(qi)或(huo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓互(hu)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)的(de)(de)比差和(he)角(jiao)差。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋可(ke)(ke)外接(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互(hu)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)以(yi)擴(kuo)大(da)(da)(da)(da)量(liang)程,測(ce)(ce)(ce)(ce)量(liang)大(da)(da)(da)(da) 的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong) 器(qi)(qi)(qi)(qi) 時本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋為四端測(ce)(ce)(ce)(ce)量(liang)具有(you)(you)引(yin)線(xian)補償裝置,使測(ce)(ce)(ce)(ce)量(liang)精度(du)提高(gao)(gao)(gao),消(xiao)除接(jie)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻引(yin)起(qi)的(de)(de)附加誤差。本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)橋還(huan)可(ke)(ke)測(ce)(ce)(ce)(ce)量(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)抗器(qi)(qi)(qi)(qi)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感(gan)(gan)(gan)量(liang)及Q值。量(liang)程擴(kuo)展器(qi)(qi)(qi)(qi)(供(gong)選購)能(neng)使主橋體的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)比從1000:1擴(kuo)大(da)(da)(da)(da)到106:1。
技術指標
電容測量范圍(wei):0.1Cn~1000Cn(7位有效(xiao)數字)外接量程擴展電容量至少測到1100uF
電容的測量準(zhun)確度:±1×10-5
電橋tgδ范(fan)圍:-110%到+110%
tgδ測量準(zhun)確度不大于0.2%rdg±1×10-5
tgδ測(ce)量z小分辨(bian)率1×10-6(連接電腦可達(da)1×10-7)
試驗電(dian)壓:0~1000kV,精(jing)度(du)1%(4位有(you)效(xiao)數字)
測(ce)量頻率:35~65Hz,精度1Hz(4位(wei)有效(xiao)數字)
電橋式介電常數測試儀參數:
1 | 使用條件 | -15℃∽40℃ | RH<80% | ||
2 | 抗干擾原理 | 變頻法 | |||
3 | 電 源 | AC 220V±10% | 允許發電機 | ||
4 | 高壓輸出 | 0.5KV∽10KV | 每隔0.1kV | ||
精 度 | 2% | ||||
最大電流 | 200mA | ||||
容 量 | 2000VA | ||||
5 | 自激電源 | AC 0V∽50V/15A | 50HZ、60HZ單頻 45HZ/55HZ 47.5HZ/52.5HZ 55HZ/65HZ 57.5HZ/62.5HZ 自動雙變頻 | ||
6 | 分 辨 率 | tgδ: 0.001% | Cx: 0.001pF | ||
7 | 精(jing) 度 | △tgδ:±(讀(du)數*1.0%+0.040%) | |||
△C x :±(讀數*1.0%+1.00PF) | |||||
8 | 測量范圍 | tgδ | 無限制 | ||
C x | 15pF < Cx < 300nF | ||||
10KV | Cx < 40 nF | ||||
5KV | Cx < 150 nF |
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